/* Popup-Steuerung */
var pop = null;
function popup(file)
{
	pop = window.open(file, 'Popup', 'width=550,height=550,left=100,top=200,resizable=yes,scrollbars=yes');
	pop.focus();
	if(pop)	{
		return false;
	} else {
		return true;
	}
}

function clearPopup()
{
	if (pop && !pop.closed) pop.close();
}

window.onload = hideFooter;
window.onunload = clearPopup;
window.onfocus = clearPopup;